Please help. Baby plant dying

I'm new to growing. And I have 2 plants in my closet with 4 CFL lights. 1 set of tubed CFL's( 60 watt, 2950 lumens). Two 300 watt CFL bulbs(4200 lumens each). And one 150 watt CFL(1600 lumens). In total, I have a lot of light on my plants. I noticed after the first day that the first set of bottom leaves on my plant were turning yellow, and from what I read, I was "over-watering". So I stopped watering it. For a day. The plant is now dead and it looked to be really dried up. The other one seems to be doing fine but it's my last plant and I don't want it to die. Ill post some pictures of my setup and please feel free to leave me your input. Cheers!

What type of soil is that? You dont feed them do you? What type of water are you using?

Miracle grow soil. Water them with a spray water bottle using distilled that got from my local store. I read that I shouldn't feed the baby's. was that False?

I also have them in my closet.. Not much airflow. Could that be the problem?

Miracle gro is your problem. Buy some seed starting mix and do some google research

Leave the plants 2-3 days without water. The soil should be completely dry before watering again. I'm growing just fine in Miracle Grow. It is definitely a struggle to get going, but it does work fine. With that said however, I definitely won't use it on my next run.

-spek

The soil just looks like crap. I can't believe people charge money for that stuff. You will never see a professional greenhouse use crap like that. Even though CFL's are pretty wimpy in my book, I don't think you need that many for little seedlings.

Honestly, it doesn't even look all that bad to me. I know that when I first was getting started, I obsessed over little seedlings like this because they were all I had to focus my gardening attention on. I just wanted to do anything I could to make them "grow better". Now that I am more up and going in a perpetual grow I don't have time to worry over every little yellow spot/droop etc. These plants want to grow-- you just have to give them the space and time to do so. Some of my first seedlings seemed weak and I even thought of throwing them out because I was afraid they might be a waste of time. Instead I just left them alone except watering when totally dry. They eventually turned into beautiful plants. Im rambling at this point but I guess I am just trying to say that if they aren't showing an obvious deficiency -- which no seedling should -- the best thing to do is probably nothing.

Oh I wanted to add that your soil does indeed look like crap as the above poster said. I thought it was bark mulch used for landscaping at first.